Lipoid pneumonia other imaging findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ramyar Ghandriz MD[2]

Overview

Bronchoscopy with bronchoalveolar lavage is useful to obtain samples for finding lipid-laden macrophages.

Other Imaging Findings

  • Bronchoalveolar lavage is used in the diagnosis of lipoid pneumonia only mostly.[1]
  • Broncho alveolar lavage may reveal turbid or whitish fluid with fat droplets at the surface.
  • Frozen samples should be examined by various staining techniques to discriminate types of oils.
  • Some false negative cases have been reported.[2]

References

  1. Levade T, Salvayre R, Dongay G, Dang QQ, Vieu C, Bessac A; et al. (1987). "Chemical analysis of the bronchoalveolar washing fluid in the diagnosis of liquid paraffin pneumonia". J Clin Chem Clin Biochem. 25 (1): 45–8. PMID 3559482.
  2. Gattuso P, Reddy VB, Castelli MJ (1991). "Exogenous lipoid pneumonitis due to Vicks Vaporub inhalation diagnosed by fine needle aspiration cytology". Cytopathology. 2 (6): 315–6. PMID 1801953.

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